Home / 279,937,008.60-419,905,512.90-193,651,402.20

Finding the Fourth Proportional to 279,937,008.60, 419,905,512.90 and 193,651,402.20

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Solution

The fourth proportional to 279,937,008.60, 419,905,512.90 and 193,651,402.20 is: 290,477,103.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,937,008.60 : 419,905,512.90 = 193,651,402.20 : x
  2. Step 2: Convert to fraction form
    279,937,008.60/419,905,512.90 = 193,651,402.20/x
  3. Step 3: Cross multiply
    279,937,008.60x = 419,905,512.90 × 193,651,402.20
  4. Step 4: Simplify right side
    279,937,008.60x = 81,315,291,364,595,184
  5. Step 5: Solve for x
    x = 81,315,291,364,595,184/279,937,008.60
  6. Step 6: Final answer
    x = 290,477,103.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.